How to sync my Apple iPhone 6S with iTunes
You can synchronize your Apple iPhone 6S with your computer for access to all your music, videos and pictures.
1. On the computer, start iTunes.
2. Connect the iPhone 6S to the computer. In iTunes, select the iPhone 6S.
3. Click Music.
4. Click Sync Music, then select the desired options.
5. Click Movies.
6. Click Sync Movies, then select the desired options.
7. Click Photos.
8. Click Sync Photos, then select the desired options.
9. Click Apply to sync the iPhone.
10. The iPhone has been synced.